Show HN: We made an open-source personalization engine https://bit.ly/357zhgG

Show HN: We made an open-source personalization engine Hey, HN! You probably know that the ordering of products on Amazon, posts in FB, and search results in Google is personalized for each visitor, as it directly affects conversion, click rate and engagement. But not everyone can afford to hire an army of PhDs to squeeze every penny out of the ranking, and not everyone agrees on the current (im)balance between privacy and profits. So we built Metarank, an open-source and privacy-focused personalization engine. It can rerank in real-time any type of content, using only the data you allow, and optimize metrics you define. We made a lot of proprietary DIY services for personalization in e-commerce in our past careers and heard so many complaints from other companies also struggling to implement personalization. It’s often considered "too risky" to spend 6+ months on an in-house moonshot project to reinvent the wheel without an experienced team and no existing open-source tools. Like other people in the industry, we were tired of building everything from the bottom up each time we approached personalization - it should be easy not only for Amazon to do such magical ML tricks, but for everyone else. A small demo of the tool with personalized recommendations: https://bit.ly/36FMLAq A blog post on how this demo was made: https://bit.ly/3wvGOB2... The project itself: https://bit.ly/3qqyxL6 https://bit.ly/3qqyxL6 March 23, 2022 at 02:12PM

Show HN: App that scans food packaging for nutritions, allergens, origin etc. https://bit.ly/36lDGgn

Show HN: App that scans food packaging for nutritions, allergens, origin etc. https://apple.co/3D5jIm5 March 23, 2022 at 12:06AM

Show HN: Vault – Sports bet data aggregation app https://bit.ly/3ujcmaO

Show HN: Vault – Sports bet data aggregation app Hey HN, this is Caleb and Zach, we co-founded Vault after realizing how behind the times consumer-facing tech was in the sports betting industry. After creating various products and prototypes for sports bettors for most of 2020 (many with little/no success), in early 2021 we realized a key problem that sports bettors faced... Most of them were tracking their bets, ROI, and net profit using Excel tables or other forms of manual entry. Gaining inspiration from fintech apps such as Intuit Mint and CoPilot, both of which link with your financial accounts and aggregate your data, we created Vault. An app that links with a bettor's sportsbooks (i.e. DraftKings, BetMGM, Caesars) and aggregates that data. Would love to hear your thoughts, and feel free to reach out to Zach and I at info@vaultsportshq.com https://bit.ly/3qtCYEH March 22, 2022 at 11:22PM

Show HN: Scrt – A secret manager for the command line https://bit.ly/3IvPude

Show HN: Scrt – A secret manager for the command line https://bit.ly/3un0HaH March 22, 2022 at 11:08PM

Show HN: I published my toolbox as shared database on notion https://bit.ly/3uiBw9n

Show HN: I published my toolbox as shared database on notion https://bit.ly/3qrxqe2 March 22, 2022 at 02:28PM

Show HN: React-based static site generator that outputs no client-side JS https://bit.ly/3uhgDv9

Show HN: React-based static site generator that outputs no client-side JS https://bit.ly/3wpT85Z March 22, 2022 at 02:35PM

Show HN: Budibase – open-source Retool alternative – launch their Public API https://bit.ly/3JBb2X6

Show HN: Budibase – open-source Retool alternative – launch their Public API https://bit.ly/3iYI4nt March 22, 2022 at 12:01PM

Show HN: Learn and create Kalimba tabs online https://bit.ly/3L1Fp9j

Show HN: Learn and create Kalimba tabs online https://bit.ly/3qrcbJf March 22, 2022 at 03:15AM

Show HN: Benson.py turns URLs into mp3s – take charge of your reading backlog! https://bit.ly/3D4vRaT

Show HN: Benson.py turns URLs into mp3s – take charge of your reading backlog! https://bit.ly/36mxiFE March 21, 2022 at 11:32PM

Show HN: Write React Hooks with Classes https://bit.ly/3L1ZlZY

Show HN: Write React Hooks with Classes https://bit.ly/3qskILZ March 21, 2022 at 11:41PM

Show HN: Party Banner for iOS https://bit.ly/3L0OzD8

Show HN: Party Banner for iOS Hey HN! Today marks the official launch of Party Banner for iPhone and iPad. Even with digital signage on the rise, we often tend to neglect one of the center focal points of our living and office spaces... the TV. Looking for a way to utilize this otherwise empty canvas, Party Banner takes every special occasion to the next level with premium digital banners that help decorate your space. Please share your thoughts on the app, and any banner designs you would like to see in future updates. Thanks, and party on! March 21, 2022 at 10:07PM

Show HN: Stridle, a Wordle Clone for Runners https://bit.ly/3wov57n

Show HN: Stridle, a Wordle Clone for Runners https://bit.ly/3L63DiZ March 21, 2022 at 04:31PM

Show HN: Scrapex.ai – Low code scraping platform https://bit.ly/3to4ENb

Show HN: Scrapex.ai – Low code scraping platform https://bit.ly/3Iswoo4 March 21, 2022 at 04:13PM

Show HN: ZeroAcquire – Sell, buy and discover pre-revenue side projects https://bit.ly/3trlpXL

Show HN: ZeroAcquire – Sell, buy and discover pre-revenue side projects https://bit.ly/3wp39A7 March 21, 2022 at 01:48PM

Show HN: Search Domain and Username in the same place https://bit.ly/3tqdwBQ

Show HN: Search Domain and Username in the same place https://bit.ly/3D9rNGF March 21, 2022 at 10:40AM

Show HN: Mindscape.pub (Collaborative mind-mapping) https://bit.ly/3qnXGWB

Show HN: Mindscape.pub (Collaborative mind-mapping) https://bit.ly/3u90Xds March 21, 2022 at 07:48AM

Show HN: Open-Source 3D Location-Based Wireless Mesh Network https://bit.ly/3wjUY8f

Show HN: Open-Source 3D Location-Based Wireless Mesh Network I've decided to open source the project I've been working on called Hyperspace. Hyperspace is a suite of software implementing a wireless mesh network for IoT devices. My main requirements are listed on my repo but I'll copy them here. 1. The mesh shall enable nodes to route packets amongst themselves. 2. The mesh shall allow nodes with limited power to participate in routing packets. 3. The mesh shall be IPv6 based. 4. The mesh shall be local. I.E. not require connection to a remote server. 5. The mesh should provide 3D location to nodes in the network. Nodes use the Decawave DW1000 UWB radio to transmit and receive data, and to measure distances to other nodes. Location can be determined with enough distance measurements (see the documentation for more details). The implementation is pretty primitive at the moment. The border router server and the iOS app are super basic and have very little in terms of actual functionality, but the core ideas are there. I'm not happy with the state of smart home devices. I don't like it when a manufacturer shuts down a key server and bricks a bunch of devices. I don't like it when devices don't interoperate. Therefore, I've decided to open source this project in the hopes that it gains traction and that we can work on creating better IoT devices together. https://bit.ly/3uggGaC March 21, 2022 at 12:45AM

Show HN: Creating Real-Time Charts with FastAPI https://bit.ly/3IogBGP

Show HN: Creating Real-Time Charts with FastAPI https://bit.ly/3io4NtD March 20, 2022 at 03:37PM

Show HN: Monitor your terminal output in realtime from everywhere https://bit.ly/3Jr9or7

Show HN: Monitor your terminal output in realtime from everywhere https://bit.ly/3qlGnFv March 20, 2022 at 02:58PM

Show HN: Open-Source Alternative to Intercom https://bit.ly/37Ez6Kt

Show HN: Open-Source Alternative to Intercom https://bit.ly/3L0vq4k March 20, 2022 at 01:02PM